// Now, do the composite.
Filter filter = null;
Vector srcs = new Vector(2);
srcs.add(in2);
srcs.add(in1);
filter = new ConcreteCompositeRable(srcs, rule);
filter = new ConcretePadRable(filter, compositeArea, PadMode.ZERO_PAD);
// Get result attribute and update map
String result = filterElement.getAttributeNS(null, ATTR_RESULT);